docs: update powerstore
diff --git a/docs/storage.md b/docs/storage.md
index ece7a6a..090ff7b 100644
--- a/docs/storage.md
+++ b/docs/storage.md
@@ -46,13 +46,17 @@
storage: cinder
conf:
glance:
+ image_formats:
+ disk_formats: raw
glance_store:
stores: cinder
default_store: cinder
```
Please note that Glance images will not function until the Cinder service is
-deployed.
+deployed. In addition, we're forcing all images to be `raw` format in order to
+avoid any issues with the PowerStore driver having to constantly download and
+upload the images.
### Cinder